/*Basic reset*/
*{
  margin:0;
  padding:0;
  box-sizing: border-box;
  font: 14px Arial,sans-serif;
}
html{
  height:100%;
  background-color:#104484;
}

#calculator{
  margin: 15px auto;
  width:330px;
  height:400px;
  border: 1px solid lightgray;
  background-color:red;
  padding:15px;
}

/*LOGO*/
.LOGO{
  height:20px;

}
.LOGO .name{
  float:left;
  line-height:30px;
}
.LOGO .verson{
  float:right;
  line-height:30px;
}
/*screen*/
#shuRu{
  margin-top:15px;
}
.screen{
  margin-top:5px;
  width:300px;
  height:40px;
  text-align: right;
  padding-right:10px;
  font-size:20px;
}
#keys{
  border:1px solid lightgray;
  height:300px;
  margin-top:30px;
  padding:10px;
}
#keys .last{
  margin-right:0px;
}
.footer{
  margin-top:20px;
  height:20px;
}
.footer .link{
  float:right;
}

#keys .buttons{
  float:left;
  width: 42px;
  height: 36px;
  text-align:center;
  background-color:lightgray;
  margin: 0 17px 20px 0;
}
